$39+ Cheap flights from Illinois to California
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LAX
Feb 26 — Mar 51
1 adult, Economy
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Find cheap flights from Illinois to California with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to California
Keep the following information in mind while searching for Illinois to California flight deals. Data was last updated February 21, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $110 (Frontier) |
One-way from | $39 (Trip.com) |
Popular in | March |
Cheapest in | September |
Average price | $288 |
Good round-trip deal | $195 or less |
Good one-way deal | $98 or less |
Find flight deals from Illinois to California
Cheapest flights from Illinois to CaliforniaExplore the most affordable flight options available from Illinois to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 21, 2025.
Explore the most affordable flight options available from Illinois to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 21, 2025.
This Frontier deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/126:45 amORD - BUR
1 stop6h 48mFrontier
Mon 3/1712:33 pmBUR - ORD
1 stop10h 11mFrontier
Deal found 2/18![Frontier logo]()
$110
This Cheapflightsfares deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/124:45 pmORD - LAS
1 stop16h 27mSpirit Airlines
Fri 3/147:59 amLAS - ORD
Nonstop3h 40mSpirit Airlines
Deal found 2/19![Spirit Airlines logo]()
$111
This Cheapflightsfares deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/76:45 amMDW - LAS
1 stop6h 18mFrontier
Fri 4/1111:49 pmLAS - MDW
Nonstop3h 34mFrontier
Deal found 2/19![Frontier logo]()
$111
This Cheapflightsfares deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/36:30 amORD - LAS
1 stop19h 19mFrontier
Mon 4/711:28 pmLAS - ORD
Nonstop3h 40mFrontier
Deal found 2/19![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/187:47 amORD - LAS
Nonstop4h 09mMultiple Airlines
Thu 3/2710:37 pmLAS - ORD
Nonstop3h 37mMultiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$113
This Cheapflightsfares deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/158:00 amORD - BUR
1 stop11h 15mSpirit Airlines
Tue 4/226:10 pmBUR - ORD
1 stop10h 23mSpirit Airlines
Deal found 2/19![Spirit Airlines logo]()
$115
This Cheapflightsfares deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/59:16 amORD - LAX
1 stop8h 27mSpirit Airlines
Mon 3/1011:15 pmLAX - ORD
1 stop7h 06mSpirit Airlines
Deal found 2/20![Spirit Airlines logo]()
$122
This Justfly.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1912:30 pmORD - LAX
Nonstop4h 46mMultiple Airlines
Mon 4/75:25 pmLAX - ORD
1 stop9h 40mMultiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$123
This Frontier deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/157:25 amMDW - LAX
1 stop9h 36mFrontier
Mon 4/212:35 pmLAX - MDW
1 stop7h 46mFrontier
Deal found 2/20![Frontier logo]()
$125
This Frontier deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/157:20 amORD - LAX
1 stop7h 47mFrontier
Thu 4/178:18 pmLAX - ORD
1 stop10h 31mFrontier
Deal found 2/20![Frontier logo]()
$125
This eDestinos deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/168:40 amORD - ONT
1 stop11h 07mFrontier
Tue 5/2710:17 pmONT - ORD
1 stop28h 54mFrontier
Deal found 2/19![Frontier logo]()
$133
This Cheapflightsfares deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/42:34 pmORD - SAN
1 stop11h 17mSpirit Airlines
Mon 4/75:30 pmSAN - ORD
1 stop11h 12mSpirit Airlines
Deal found 2/20![Spirit Airlines logo]()
$142
Find flights from Illinois to California within your budget
Customize your flight search to find flights from Illinois to California that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 21, 2025.
Fly from
Illinois
Fly to
California
Route
Depart
Return
Price
ChicagoBurbank
ORD - BUR
ORDBUR
Chicago O'Hare Intl
Wed 3/12
6:45 am-11:33 am
1 stop6h 48m
Burbank Bob Hope
Mon 3/17
12:33 pm-12:44 am
1 stop10h 11m
$110
ChicagoLas Vegas
ORD - LAS
ORDLAS
Chicago O'Hare Intl
Wed 3/12
4:45 pm-7:12 am
1 stop16h 27m
Las Vegas Harry Reid Intl
Fri 3/14
7:59 am-1:39 pm
Nonstop3h 40m
$111
ChicagoLas Vegas
MDW - LAS
MDWLAS
Chicago Midway
Mon 4/7
6:45 am-11:03 am
1 stop6h 18m
Las Vegas Harry Reid Intl
Fri 4/11
11:49 pm-5:23 am
Nonstop3h 34m
$111
ChicagoLas Vegas
ORD - LAS
ORDLAS
Chicago O'Hare Intl
Thu 4/3
6:30 am-11:49 pm
1 stop19h 19m
Las Vegas Harry Reid Intl
Mon 4/7
11:28 pm-5:08 am
Nonstop3h 40m
$112
ChicagoLas Vegas
ORD - LAS
ORDLAS
Chicago O'Hare Intl
Tue 3/18
7:47 am-9:56 am
Nonstop4h 09m
Las Vegas Harry Reid Intl
Thu 3/27
10:37 pm-4:14 am
Nonstop3h 37m
$113
ChicagoBurbank
ORD - BUR
ORDBUR
Chicago O'Hare Intl
Tue 4/15
8:00 am-5:15 pm
1 stop11h 15m
Burbank Bob Hope
Tue 4/22
6:10 pm-6:33 am
1 stop10h 23m
$115
ChicagoLos Angeles
ORD - LAX
ORDLAX
Chicago O'Hare Intl
Wed 3/5
9:16 am-3:43 pm
1 stop8h 27m
Los Angeles
Mon 3/10
11:15 pm-8:21 am
1 stop7h 06m
$122
ChicagoLos Angeles
ORD - LAX
ORDLAX
Chicago O'Hare Intl
Wed 3/19
12:30 pm-3:16 pm
Nonstop4h 46m
Los Angeles
Mon 4/7
5:25 pm-5:05 am
1 stop9h 40m
$123
ChicagoLos Angeles
MDW - LAX
MDWLAX
Chicago Midway
Tue 4/15
7:25 am-3:01 pm
1 stop9h 36m
Los Angeles
Sat 4/19
2:35 pm-12:21 am
1 stop7h 46m
$125
ChicagoLos Angeles
ORD - LAX
ORDLAX
Chicago O'Hare Intl
Tue 4/15
7:20 am-1:07 pm
1 stop7h 47m
Los Angeles
Thu 4/17
8:18 pm-8:49 am
1 stop10h 31m
$125
Showing 1-10 of 60 results
Best time to book a flight from Illinois to California
Have a flexible travel schedule? Discover the best time to fly to California from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Travel insights for flights from Illinois to California
Get recent, data-driven insights about flights from Illinois to California including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Illinois to California?
Currently, January is the cheapest month in which you can book a flight from Illinois to California (average of $246). Flying from Illinois to California in March is currently the most expensive (average of $344). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IL to CA?
Find hourly flight availability from Illinois to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 21, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to California as you normally would.
Weekly flight availability from Illinois to California
Explore weekly flight availability from Illinois to California. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 21, 2025.
The most flights from USIL to USCA are scheduled on a Thursday (94 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (52 on average).
Rainfall in California by month
Plan your trip to California by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in California ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit California when rainfall is around 0.0 in.
Temperature in California by month
Plan your trip to California by taking into account the average temperature totals by month.
If weather is an important factor for your trip to California, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).
Reviews of airlines servicing California
Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated February 21, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Illinois to California have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.7
Comfort
8.1
Entertainment
7.6
Food
7.1
Overall
8.1
Boarding
8.2
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Crew
8.7
Comfort
8.1
Entertainment
7.6
Food
7.1
Overall
8.1
Boarding
8.2
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Crew
8.7
Comfort
8.1
Entertainment
7.6
Food
7.1
Overall
8.1
Boarding
8.2
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Crew
8.7
Comfort
8.1
Entertainment
7.6
Food
7.1
Overall
8.1
Boarding
8.2
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Crew
8.7
Comfort
8.1
Entertainment
7.6
Food
7.1
Overall
8.1
Boarding
8.2
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Crew
8.7
Comfort
8.1
Entertainment
7.6
Food
7.1
Overall
8.1
Boarding
8.2
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Related info for your journey
Find useful and relevant information for your journey from Illinois to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Illinois to California
See prices for flight routes from nearby airports that may be better suited for you.
Top 9 airlines flying from Illinois to California
Discover the top 9 airlines that operate flights from Illinois to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 21, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$164 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$82 | Average$202 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$89 | Average$250 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$128 | Average$419 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$137 | Average$471 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$140 | Average$460 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$147 | Average$350 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$152 | Average$451 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$179 | Average$500 | FlexibilityNo cancel fee | On-time71% |